Tongue-hitch.



E.A.JOHNSTON.

TONGUE HITCH.

APPLIUATION FILED FEB.26.1906

2 SHEETS-'SHEET l.

No. 831,514. PATENTED SEPT. 18, 1906.

` E. A. JOHNSTON.

TONGUE HITOH.

APPLICATION FILED FEB.26,1|906.

2 SHEETS-SHEET 2.

Sterling, in the county of Whiteside and wagon a tongue-hitch UNITED srnisarnnr onirica.

EDWARD A. JOHNSTON, OF STERLING, ILLINOIS, ASSIGNOR TO INTERNA- TIONAL HARVESTER COMPANY, A CORPORATION OF NEW JERSEY.

TONGUE-HITCH.

Original application filed December 20,

Speecation of Letters Patent.

1905, Serial No. 292,533. Divided and this application Patented Sept. 18, 1906. filed February Z6, 1906. Serial to the stub-tongue 1 by means of the yokeshaped iron 6, the pivotal axis 7 thereof lying a short distance in front of the rear' end of the said stub-tongue. The supplemental tongue is provided with a hook 8 on its forward end, which is made to engage a suitable member 9 on the wagon with which it connects. A rearwardly-folding leg l0 is pivoted to the forward end of the stub-tongue 1, thestop 11 having' formed at its upper end the hooks 11, w ich engage a forward projection 7 of the yoke 7, limiting the forward movement of the said leg 10 and yet permitting of rearward movement thereof.'

In order to control the vertically-swinging movement ofthe supplemental tongue 5, the `ollowing means are employed: A clevis 12 is adjustably pivoted at its upper end to the supplemental tongue, the pivotal axis being formed by the bolt 13. Rock-arms 14 are fixed to the pin I4', which has a bearing in the stub-tongue 1, and these rock-arms are made to engage at their lower ends the lower ends ofthe in F' ment of the pin 14/ and arms 14 will through the clevis 12 operate to lift the supplemental tongue 5. To eflect this rocking movement, one of the rock-arms 14 has fixed thereto or preferably formed integral therewith a bent lever 15, this bent lever enabling the clevis 12 to be swung to a locked position with respect to the fulcrum of the arms 14, as shown in Figs. 1 and 2, thus locking together the stub-tongue 1 and supplemental tongue 5.

The relative position of the fulcrum and pivotal centers are indicated in Fig. 2 bya, t, and c, which represent, respectively, the fulcrum of the clevis 12 on the supplemental tongue, the fulcrum-of the rock-arms 14 on the stub-tongue, and the pivotal connection between said rock-arms and clevis. a, b, and c represent the same centers after the bent lever 15 has been moved forwardly and the supplemental tongue raised to the position shown by dotted lines in Fig. 2. A coiled spring 16, reacting between the two tongues near the pivotal axis 7, exerts a pressure which tends to separate the two, such movement being prevented, however, by the arrangement of the clevis and bell-crank when To all whom, t may concern,.-

Reit known that I, EDWARD A. JOHNSTON, alcitizen of the United States, residing at State of Illinois, have invented a new and useful Improvement in Tongue-Hitches, of

following' is a complete specifica- This is a divisional application of the one filed by me December 20, 1905, Serial No. 292 ,538, hay loader. While the tonguehitch which forms the subject-matter of the present application is particularly well adapted for use in connection with the hay-loader the original application, applicable to practically all types of two-wheel-supported hay-loaders.

The object of the invention is to provide an improved and simple device for engaging and disengaging a hay-loader from the rear end of the wagon. It is of importance in machines of this class to provide a construction which will enable them to be readily attached to and detached from the wagons of different height either when the load is on or when the wagon is empty and to so arrange the parts that the detachment can be effected either by the man on the wagon which is being loaded or from the ground without the necessity of getting beneath the wagon to effect the disconnection. In the present construction to protect the gathering-cylinder, which is placed in advance of the supportingwheels, and avoid throwing the weight of the entire forward part of the loader on the cylinder when the loader is detached from the having a folding leg is employed.

Referring to the accompanying Figure 1 represents a side elevation of a hayloader embodying' my invention. Fig. 2 is an enlarged detail view, in side elevation, of the tongue-hitch. Fig. 3 is a front elevation I drawings,

of same; and Figs. 4 and 5 represent detail sectional views taken, respectively, on the lines 4 4 and 5 5 of Fig. 2.

A stub-tongue 1 is secured to and extends forwardly from the cross-sill 2 of the main frame of the hay-loader, the forward end of said tongue being rigidly braced by means of the obliquely-arranged brace-rods 3 and 4.

supplemental tongue 5 is hinge-connected IOO in a locked position, as shown in Figs. 1 and 2, but when tripped will cause the supplemental tongue to rise and disengage itsel from the member 9 of the wagon-rack, as indicated by dotted lines in the latter figure. A rope 16 connects, through the link 17, with bent lever 15 and enables the locking mechanism to be tripped. The rope 16 extends to a position within convenient reach of an operator on the ground or may extend to a position within reach of an operator on the wagon. To attach the tongue-hitch to the wagon, the wagon is backed up in front of the hay-loader and the supplemental tongue 5 is pressed down and the bent lever 15 and rockarms 14 moved forwardly, the several parts moving from the dotted-line position of Fig. 2 to the full-line position of the same figure, the hook 8 being thereby brought into engagement with the corresponding fastening on the member 9 of the wagon-rack. The link 17, connecting with the bent lever 15 in conjunction with the pin 18, permits of a greater latitude of movement of the said bent lever.

What l claim as my invention, and desire to secure by Letters Patent, is-

1. A tongue-hitch comprising a stubtongue, a supplemental tongue having a pivotal connection at its rear end therewith, means for effecting a locking connection between the forward end of said supplemental tongue and the stub-tongue, and means for supporting the forward end of the stubtongue when detached from the wagon-rack.

2. A tongue-hitch comprising a stubtongue, a supplemental tongue having a pivotal connection at its rear end therewith, means for eecting a locking connection between the forward end of said supplemental tongue and stub-tongue, and a folding leg depending from the forward end of the stubtongue.

3. In combination with a hay-loader, a tongue-hitch comprising a stub-tongue, a

supplemental tongue having a pivotal connection at its rear end therewith, means for effecting a locking connection between the forward end of said supplemental tongue and stub-tongue, a spring operating to movethe two tongues apart, and means for supporting the forward end of the stub-tongue when detached from the wagon-rack.

1. In combination with a hay-loader, a tongue-hitch comprising a stub-tongue, a supplemental tongue lying above said stubtongue and pivotally connected at its rear end thereto7 a rack-engaging hook on the forward end of the supplemental tongue, rockarms pivotally .mounted upon said stubtongue, a clevis pivoted to the supplemental tongue and connected with the lower ends of said rock-arms in such relation that the parts will be locked together when the rock-arms are moved to their forward position, means for controlling the position of the rock-arms, and a rearwardly-folding leg depending from the forward end of the stub-tongue.

5. In combination with a hay-loader, a tongue-hitch comprising a stub-tongue, a supplemental tongue lying above said stubtongue and pivotally connected at its rear end thereto, rock-arms fulcrumed in the stubtongue and depending on either side thereof, an upwardly-extending bent lever as one piece with said rock-arms, a linlr-and-rope connection with said bent lever, a clevis pivoted to the supplemental tongue and connected with the lower ends of said rock-arms in such relation that the parts will be locked together when the 'rock-arms are moved to their forward position, means for controlling the position of the rock-arms, and a rearwardly-swinging leg depending from the forward end of the stub-tongue.

EDWARD A. JOHNSTON.

Witnesses:

E. R. THoMrsoN, W. E. LONG. 

